1. Finalize my 'secret weapon' -- pygtk-based viewer for VSD/VSS files =)
2. Make 'for reverse engineer' version of pygtk-based parser more comfortable,
   port my rev.enge. stuff from cdr_explorer.

[RevEnge Mistake]
There is weird 0x8a NURBSTo in IBM-pSeries stencil.
Stream 35, offset 3743.
Block includes just 0x8a, one IEEE, 1, seven 0s and 0xFE.